The answers showed British people had the lowest expectations of all the nationalities, with respondents suggesting the average willy was just 12.4 cm from base to tip, whilst the ideal appendage was 14.2 cm long.

The team wrote: "The United Kingdom offered the most conservative estimate: 12.4 cm, more than 3 cm shorter than the highest estimate in Europe."

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Sadly for men, women around the world consistently said the ideal penis length was about 2cm bigger than the average size.

"While it's concerning that even an average penis size is seen as less than ideal, it's unclear whether a difference of only 2 cm would have a meaningful effect on sexual satisfaction for a man or his partner," the researchers added.

"Yet men may be evaluating themselves even more harshly: Despite having an estimate of average size that's similar to women's, they believe the ideal penis is 2.5 cm longer.

Planet Penis: The overall results of the survey

"Popular ideas of the typical penis can vary tremendously – with all the more potential for uncertainty and insecurity about one's own size."

The manhood measurement crew said many people believed that "even average genitals may not be big enough".